Just got these edifier r1700bt speakers. I love them but im confused on what these 2 buttons do. All I know is they control something called sound field extension. Anyone know?

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Edifier R1700BT Bluetooth Bookshelf Speakers - Active Near-field Studio Monitors - Powered Speakers 2.0 Setup Wooden Enclosure - 4 inch Subwoofer - 66 - Reviews

Just got these edifier r1700bt speakers. I love them but im confused on what these 2 buttons do. All I know is they control something called sound field extension. Anyone know?

Edifier R1700BT Bluetooth Bookshelf Speakers - Active Near-field Studio Monitors - Powered Speakers 2.0 Setup Wooden Enclosure - 4 inch Subwoofer - 66 - Reviews

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